8129360564 has 12 divisors (see below), whose sum is σ = 15320718084. Its totient is φ = 3752012544.

The previous prime is 8129360537. The next prime is 8129360573. The reversal of 8129360564 is 4650639218.

It can be written as a sum of positive squares in 2 ways, for example, as 3539298064 + 4590062500 = 59492^2 + 67750^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78166877 + ... + 78166980.

It is an arithmetic number, because the mean of its divisors is an integer number (1276726507).

Almost surely, 2^8129360564 is an apocalyptic number.

It is an amenable number.

8129360564 is a deficient number, since it is larger than the sum of its proper divisors (7191357520).

8129360564 is a wasteful number, since it uses less digits than its factorization.

8129360564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156333874 (or 156333872 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 8129360564 is about 90162.9666991942. The cubic root of 8129360564 is about 2010.7224587085.

The spelling of 8129360564 in words is "eight billion, one hundred twenty-nine million, three hundred sixty thousand, five hundred sixty-four".